Data row: Facebook's Zuckerberg will not appear before MPs

Facebook founder Mark Zuckerberg has said he will not appear before MPs investigating fake news, but will send one of his senior executives instead. The tech giant and data analytics firm Cambridge Analytica are at the centre of a dispute over harvesting personal data and whether it was used in Donald Trump's presidential election campaign. Mr Wylie claims the data was sold to Cambridge Analytica, which then used it to psychologically profile people and deliver pro-Trump material to them. Cambridge Analytica denies any of the data acquired was used as part of the services it provided to the Trump campaign. On Friday, enforcement officers from the UK's information commissioner carried out a seven-hour search of Cambridge Analytica's London offices after the High Court granted the data watchdog a warrant. MPs have written to Mr Nix, currently suspended from Cambridge Analytica, to ask him to return before the committee after his previous appearance in February.